Table 8.
Univariate and multi-variate models assessing the impact of the COVID-19 pandemic on HIV testing rates among people prescribed OAT in all of Glasgow, 2010–2021 (June 2021 only)
| Co-variates | Na | HIV test in the last year (% of N) | Univariateb | Multi-variateb | ||
|---|---|---|---|---|---|---|
| OR (95% CI) | P value | aOR (95% CI) | P value | |||
| Time perioda | ||||||
| Pre-outbreak (2010–2014) | 11,908 | 1,973 (17%) | 0.17 (0.16–0.18) | < 0.001 | 1.16 (0.15–0.17) | < 0.001 |
| Early outbreak (2015–2016) | 9,519 | 3,430 (36%) | 0.48 (0.46–0.51) | < 0.001 | 0.47 (0.44–0.49) | < 0.001 |
| Ongoing outbreak (2017–2019) | 9,412 | 5,053 (54%) | 1 | 1 | ||
| COVID-19 (2020–2021) | 7,599 | 2,847 (37%) | 0.52 (0.49–0.55) | < 0.001 | 0.50 (0.48–0.53) | < 0.001 |
| Local authority area | ||||||
| Rest of Glasgow | 3,788 | 1,910 (50%) | 1 | 1 | ||
| Glasgow city | 10,410 | 6,198 (59%) | 1.42 (1.34–1.50) | < 0.001 | 1.59 (1.49–1.68) | < 0.001 |
| Gender | ||||||
| Male | 9,783 | 5,659 (58%) | 1 | 1 | ||
| Female | 4,415 | 2,449 (55%) | 0.93 (0.89–0.98) | 0.009 | 0.92 (0.87–0.97) | < 0.001 |
| Age groupa | ||||||
| < 35 | 6,738 | 2,312 (34%) | 1 | 1 | ||
| 35–45 | 17,801 | 5,960 (35%) | 1.03 (0.96–1.09) | 0.437 | 0.80 (0.75–1.68) | < 0.001 |
| 46 + | 14,619 | 5,031 (34%) | 1.00 (0.94–1.07) | 0.895 | 0.61 (0.56–0.65) | < 0.001 |
| Injecting-related hospital admission in the last 2 yearsa | ||||||
| No | 29,457 | 9,046 (31%) | 1 | 1 | ||
| Yes | 8,981 | 4,257 (47%) | 2.65 (0.51–2.80) | < 0.001 | 2.51 (2.37–2.66) | < 0.001 |
OR odds ratio, aOR adjusted odds ratio
aTime varying co-variate; people can be included in multiple categories
bMulti-level framework to adjust for across time period duplicates